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Finding the Fourth Proportional to 474,667.51, 655,358.28 and 281,137.45

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Solution

The fourth proportional to 474,667.51, 655,358.28 and 281,137.45 is: 388,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,667.51 : 655,358.28 = 281,137.45 : x
  2. Step 2: Convert to fraction form
    474,667.51/655,358.28 = 281,137.45/x
  3. Step 3: Cross multiply
    474,667.51x = 655,358.28 × 281,137.45
  4. Step 4: Simplify right side
    474,667.51x = 184,245,755,675.59
  5. Step 5: Solve for x
    x = 184,245,755,675.59/474,667.51
  6. Step 6: Final answer
    x = 388,157.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.